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| H A D | head_64.S | 2f69a81a Mon Aug 07 11:26:59 CDT 2023 Ard Biesheuvel <ardb@kernel.org> x86/head_64: Store boot_params pointer in callee save register
Instead of pushing/popping %RSI to/from the stack every time a function
is called from startup_64(), store it in a callee preserved register
and grab it from there when its value is actually needed.
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Link: https://lore.kernel.org/r/20230807162720.545787-3-ardb@kernel.org
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